SMITH: LIST OF SOUTH AFRICAN MARINE MOLLUSCA. 387 
instructi, sulcis intervenientibus infra haud ad suturam productis, 
ultimus infra medium levis; apertura parva, ovata: columella leviter 
arcuata, reflexa. Long. 5:5, diam. 1 mm. 
Hab.—S8. Africa. 
In 7. lactea, Linn., the costz and sulci reach from suture to suture, 
whereas in the present species they terminate inferiorly just above the 
suture. The shells here described are identified in ‘‘The Marine 
Shells of South Africa” as belonging to 7. lactea. 
270. Tourponrtta tincta, Sowerby. 
Turbonilla tincta, Sowerby: Proc. Malac. Soc., vol. iv, p. 5 (1900), 
plea, tis, 15, 
Hab.—The Kowie (Sowerby). 
271. TuRBoNILLA BATHYRAPHE, Sowerby. 
Turbonilla bathyraphe, Sowerby: Proc. Malac. Soc., vol. iv, p. 213 
(i901); ply xx, fie, 18. 
Hab.—The Kowie (Sowerby). 
272. TurBoniLLa pDiscutus, Vélain(?). 
Turbonilla disculus, Vélain: Tryon, Man. Conch., vol. vili, p. 336, 
pl ixxy, fig. 97. 
Hab.—Durban; St. Paul I., Indian Ocean (Vélain). 
273. Mormuta Macanprem, A. Adams. 
Mormula Macandrea {sic}, A. Adams: Sowerby, Proc. Malac. Soc., 
vol. iv, p. 5 (1900). 
Hab.—Pondoland (Sowerby). 
274. Neriva aterrma (Gmelin). 
Nerita nigerrima, Chemnitz: Reeve, Conch. Icon., vol. ix, figs. 11a, 6. 
Hab.—Umkomaas (Burnup). 
275. Neririva Natatensts, Reeve. 
Neritina Natalensis, Reeve : Conch. Icon., vol. ix, pl. xvi, figs. 75a, 6. 
Neritina zebra, Krauss: Siidafr. Moll., p. 88 (nee Lamarck). 
Hab.— Natal (Reeve); Durban (Burnup and others). 
276. NERITINA CREPIDULARIA, Lamarck. 
Neritina erepidularia, Lamarck : Martens, Conch. Cab., 2nd ed., p. 37, 
pl. vii, figs. 1-14. 
Hab.—Natal (Krauss); Ashanti (Brit. Mus. ). 
For distribution and synonymy see Martens. 
277. TursBo curysosromus, Linn. 
Turbo chrysostomus, Linn.: Pilsbry, Man. Conch., vol. x, p. 200, pl. x], 
fig. 19. 
Hab —Durban (Burnup). 
278. Touro sPpLENDIDULUS, Sowerby. 
Turbo splendidulus, Sowerby: Thes. Conch., vol. vy, p. 229, pl. 506, 
figs. 180, 181. 
Hab.—Umzinto ; Durban ; ——? (Sowerby). 
